JP2005079636A - Mobile communication terminal, power supply control system thereof, method of controlling power supply thereof, mobile communication terminal management center, and method of calculating execution time of power supply control - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power supply control system capable of automatically setting the power control of a mobile communication terminal and notifying a user of an incoming call when the power supply is turned off. <P>SOLUTION: The mobile communication system is configured of a mobile communication terminal 10, a base station 20, and a management center 40. The system is provided with a means 51 which is provided in the management center 40 and collects utilization information including time band information at which the terminal 10 is used; a utilization state diagnosing means 53 for calculating a time zone in which the power supply of the terminal 10 is turned off using the utilization state information obtained by this means; a means 14 which is provided in the terminal 10 and controls the power supply of the terminal 10 at the time zone obtained by the means 53, at which the power supply is turned off; and an incoming call history management means 57 which is provided in the management center 40 and creates an incoming call history of the terminal 10 when an incoming call arrives at the terminal 10 during the power-off of the power supply, and transmits the incoming call history to the mobile communication terminal when the mobile communication terminal completes the power-off. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mobile communication system including a mobile communication terminal, a base station, and a center, and more particularly, to a use status diagnosis of a mobile communication terminal and a power control system for the mobile communication terminal based on the diagnosis.

Conventionally, power control for the purpose of power saving or the like of a mobile communication terminal has been performed by pressing a power key of the mobile communication terminal with a user's hand to turn the power on and off (see Patent Documents 1 to 3). Since this method is performed manually by the user, there are drawbacks such as forgetting to turn on the power. If the power is automatically turned on and off by setting the timer to solve this drawback, the power is cut off at a preset time, and there is a demerit that it is impossible to know the incoming call while it is cut off.
Japanese Patent Application No. 8-257248 (PS battery saving by intermittent reception when moving at high speed) JP2001-036673 (Notification of optimal rate plan) JP 2002-158767 (PS power on / off time can be freely set by user operation)

  As described above, in the prior art, since the user manually controls the power supply of the mobile communication terminal, the user often forgets to turn on or off the power, and the power on / off timing must be always taken care of. There was annoyance. When the user forgets to turn off the power, since the mobile communication terminal is always activated even when it is not used, there is a possibility that it cannot be used when it is desired to use it. Further, the conventional power control method has a problem that even if an incoming call is received while the power is turned off, the user cannot know that the incoming call has been received.

Accordingly, the present invention eliminates such problems, can automatically turn off the power of the mobile communication terminal without being aware of the user, and can also notify the user of an incoming call when the power is turned off. An object is to provide a power supply control system for a communication terminal.

  The power control system for a mobile communication terminal according to the present invention is a mobile communication system composed of a mobile communication terminal, a base station, and a management center. Time zone information provided in the management center and used by the mobile communication terminal. Means for collecting usage status information including: usage status diagnosis means for calculating a time zone during which the mobile communication terminal is powered off using the usage status information obtained by the means; and the mobile communication terminal. Means for controlling the power supply of the mobile communication terminal during the power-off time obtained by the use status diagnosis means; and provided in the management center, and receiving an incoming call to the mobile communication terminal in the power-off state. If the mobile communication terminal finishes power-off, an incoming call history management means is provided for sending the incoming call history to the mobile communication terminal. The features.

A power control system for a mobile communication terminal according to the present invention includes a mobile communication terminal, a base station that includes the mobile communication terminal in a service area, a mobile communication terminal, and a management center that manages the base station. In a communication system,
The center grasps and saves the communication usage status of the mobile communication terminal, and stores the diagnosis result of diagnosing the usage status information saved by this means and using the time period when the mobile communication terminal is not used as the power-off time. Means for transmitting the diagnostic result stored by the means to the base station, means for collecting and storing incoming histories received at the mobile communication terminal while the mobile communication terminal is powered off, and the means Means for transmitting the incoming call history stored by the mobile station to the base station when the mobile communication terminal finishes powering off,
The base station comprises means for receiving the diagnostic result information and transmitting it to the mobile communication terminal, and means for receiving the incoming call history information and transmitting it to the mobile communication terminal,
The mobile communication terminal receives and stores the diagnostic result information transmitted from the base station, diagnostic result display means for displaying the diagnostic result information received by the means, and the diagnostic result information Diagnostic result reflecting means for performing power-off control on the mobile communication terminal based on the received call history storage means for receiving and storing the incoming call history information transmitted from the base station, and the incoming call history stored by the means An incoming call history display means for displaying information and a means for performing location registration when the power-off control is terminated and the power is turned on again are provided.

  Further, the mobile communication terminal of the present invention includes means for receiving a diagnosis result transmitted from a base station, means for storing the diagnosis result received by this means in a memory including a USIM card, and the means stored by this means. Means for displaying the contents of diagnosis result information; means for controlling power-off of the mobile communication terminal based on the stored diagnosis result; means for receiving and storing an incoming call history transmitted from the base station; And a means for displaying the contents of the incoming call history information stored in step (2) and a means for registering the location when the power is turned off and the power is turned on again.

  Further, the mobile communication terminal management center of the present invention diagnoses the usage status information for each fixed period stored by the means for storing usage status information of the mobile communication terminal user, and for each mobile communication terminal user. Diagnostic means for grasping the use time zone and determining the time zone for powering off, means for storing the result of diagnosis by this means and transmitting it to the base station, and when the mobile communication terminal receives an incoming call while the power is off Means for collecting and storing an incoming call history, and means for transmitting the incoming call history to a base station including the mobile communication terminal in an area after the mobile communication terminal has completed power location shutdown and location registration. It is characterized by that.

  The mobile communication terminal power supply control execution time calculation method of the present invention stores the usage status information of each user at the center that manages the mobile communication terminal and the base station, diagnoses the usage status information within a certain period, and uses the usage time. It is characterized in that the time zone is grasped and the time zone during which power control is performed is determined based on this.

Further, the mobile communication terminal power control method of the present invention is a mobile communication system including a mobile communication terminal, a base station, and a management center.
The center grasps the communication usage status of the mobile communication terminal and saves it, diagnoses the saved usage status information, sends the diagnosis result to the base station, and collects the incoming call history during power interruption And storing the incoming call history when the mobile communication terminal finishes powering off, and transmitting the mobile communication terminal to a base station included in the area,
The base station comprises the steps of receiving the diagnostic result information and transmitting it to the mobile communication terminal, and receiving the incoming call history information and transmitting it to the mobile communication terminal,
The mobile communication terminal receives and stores the diagnostic result information transmitted from the base station, displays the contents of the diagnostic result information, and is not used by the mobile communication terminal based on the diagnostic result information A step of turning off the power of the mobile communication terminal in a time zone; a step of receiving and storing the incoming call history information transmitted from the base station; a step of displaying the incoming call history information; And a step of performing position registration when the power is turned on again.

  Further, the power control system for a mobile communication terminal according to the present invention is a means for collecting and storing information related to the usage status of the mobile communication terminal (information used for billing, etc.), and what kind of stored usage status information is given at regular intervals. Means for diagnosing whether the usage status is present (the previous diagnostic result is also fed back to this time), means for storing the usage status diagnostic result, means for transmitting the usage diagnostic result to the base station where the corresponding mobile communication terminal is currently located, Manages incoming call history (information from where and when an incoming call is received) when the mobile communication terminal is turned off, and the mobile communication terminal registers its location when the power is turned off and turned on. Center that has means to monitor the incoming call, means to notify the mobile communication terminal of the incoming call history, receives the usage diagnosis result sent from the center, and applies the usage diagnosis result The means for transmitting to the mobile communication terminal, receiving the reception history as well as the usage information diagnosis result, the base station having the means for transmitting to the mobile communication terminal, receiving the usage status diagnosis result sent from the base station, Means for storing in a storage medium (USIM card, memory, etc.), means for displaying a usage status diagnosis result, means for reflecting the usage status diagnosis result, powering off the mobile communication terminal, means for registering a position when the power is turned on, A mobile communication terminal having means for receiving an incoming call history and notifying an incoming call history, and a system constituted by them.

  In the system of the present invention described above, the center diagnoses the usage status of the mobile communication terminal, and the mobile communication terminal turns off the power based on the result, so it is possible to perform very efficient power control. . In addition, the center can manage incoming calls when the power is off so that the user can know.

  According to the present invention, since the time when the user is not using the mobile communication terminal can be automatically set as the power control execution time zone, the battery usage efficiency is high and the convenience for the user is also high.

In addition, when an incoming call is received while the power is turned off, the incoming call history can be confirmed at the end of the power cut-off, and the incoming call cannot be disabled due to the power being cut off.

  Embodiments of the present invention will be described below with reference to the drawings.

(About the configuration)
FIG. 1 is a block diagram showing a schematic configuration of a PHS system as an example of a mobile communication system to which the present invention is applied. This system includes a PHS terminal 10, a PHS base station 20 that can be connected to the PHS terminal 10 by radio, a center 40 that is connected to the PHS base station 20 via a public network 30, and a user usage status management unit placed in the center. 50. Here, there are many other PHS terminals 10 and PHS base stations 20, but here, a specific one terminal and one base station will be described as an example.

(Terminal internal configuration)
The PHS terminal 10 has normal PHS telephone communication means, but in addition, a usage status diagnosis result storage unit 11, a usage status diagnosis result display unit 12, a setting result transmission unit 13, a usage status diagnosis result reflection unit 14, and an incoming call history storage Section 15, incoming call history display section 16, and position registration section 17. Here, the usage status diagnosis result storage unit 11 is a storage unit that stores the usage information diagnosis result sent from the PHS base station 20. The usage status diagnosis result display unit 12 is a display unit that displays the power-off execution time zone of the usage information diagnosis result stored in the usage status diagnosis result storage unit 11 on the display. The setting result transmission unit 13 is a notification unit that transmits the result of the user confirming the power-off execution time zone displayed on the display and determining whether the power-off can be performed to the PHS base station 20. . The usage status diagnosis result reflection unit 14 is a processing unit that performs power supply control in a corresponding time zone based on the usage status diagnosis result stored in the usage status diagnosis result storage unit 11. The incoming call history storage unit 15 is a storage unit that stores an incoming call history sent from the PHS base station 20. The incoming call history display unit 16 is display means for displaying the incoming call history stored in the incoming call history storage unit 15 on the display. The position registration unit 17 is processing means for performing position registration when the power is turned on.

(Base station internal configuration)
In addition to general PHS base station means, the PHS base station 20 includes a usage status diagnosis result communication unit 21, a setting result communication unit 22, and an incoming call history communication unit 23. Here, the usage status diagnosis result communication unit 21 is a notification unit that receives the usage diagnosis result sent from the center 40 and transmits it to the PHS terminal 10. The setting result communication unit 22 is a notification unit that receives the setting result sent from the PHS terminal 10 and transmits it to the center. The incoming call history communication unit 23 is a notification unit that receives an incoming call history sent from the center 40 and transmits it to the PHS terminal 10.

(Center internal structure)
The user usage status management unit 50 is placed in a center 40 connected to a plurality of PHS base stations via the public network 30. In addition to general means as a center, the usage status information collection unit 51, usage Situation diagnosis trigger determination unit 52, usage status diagnosis unit 53, usage status diagnosis result storage unit 54, usage status diagnosis result transmission unit 55, setting result storage unit 56, incoming call history management unit 57, location registration management unit 58, incoming call history transmission A portion 59 is provided. The usage status information collecting unit 51 is a processing unit that collects and stores information on usage time zones when the PHS terminal 10 performs communication. The usage status diagnosis opportunity determination unit 52 is a monitoring unit that monitors the timing for performing usage status diagnosis. The usage status diagnosing unit 53 is a processing unit that checks the time zone in which the mobile communication terminal communicated based on the usage status information and calculates the time zone during which the power is turned off. The usage status diagnosis result storage unit 54 is a storage unit that stores the result of diagnosis by the usage status diagnosis unit. The usage status diagnosis result transmission unit 55 is a notification unit that transmits a usage status diagnosis result to the PHS base station 20. The setting result storage unit 56 is a storage unit that receives and stores a setting result transmitted from the PHS base station 20. The incoming call history management unit 57 is a processing unit that determines whether or not the PHS terminal 10 is powered off and collects and stores incoming calls at that time. The location registration management unit 58 is a processing unit that monitors whether the PHS terminal 10 is turned on and performs location registration. The incoming call history transmission unit 59 is a notification unit that transmits an incoming call history to the PHS base station 20.

(Processing flow)
Next, the flow of information processing for power control in the PHS system configured as described above will be described with reference to FIGS. 2 to 7 and FIGS.

(Regarding the process until the usage status diagnosis result is reflected)
FIG. 2 is a sequence showing the flow of processing of the entire system from the usage status diagnosis of the PHS system to the reflection of the usage status diagnosis result, and FIG. 3 is a flowchart showing the processing flow of the center 40. As shown in FIG. 3, the user usage status management unit 50 collects usage status information of the PHS terminal 10 in the usage status information collection unit 51 (step S501). The diagnosis trigger determination unit 52 determines a diagnosis trigger (step S502), the usage status diagnosis unit 53 diagnoses the usage status (communication usage time zone), and calculates the power-off execution time zone (step S503).

  FIG. 15A is a table showing an example of collected usage status information of the PHS terminal 10, and FIG. 16 is a flowchart for explaining more specific processing in step S503. This usage status information indicates, for example, the daily usage status of the PHS terminal 10 for one month with time. The usage status diagnosis unit 53 sorts the usage status information by usage time, and obtains usage status information after sorting as shown in FIG. 15B (step S601). This information is a record of the usage status of the PHS terminal 10 for one month for each time period of one day. The usage status diagnosing unit 53 determines whether or not there is an hour or more between the communication end time of the sorted usage status information and the start time of the next communication (step S602). If there is more than one hour, the time between them is set as the power-off execution time zone (step S603). Attention is paid to the communication start time of the next communication history (step S604). Also regarding the next communication history, the difference between the communication end time and the start time is seen to determine whether it is a power-off execution time zone. When the interval between the last communication end time and the first start time in the communication history is confirmed, the power-off execution time zone calculation is terminated (step S605).

  The usage status diagnosis result created in step S503 in FIG. 3 is stored in the usage status diagnosis result storage unit 54 (step S504). The usage status diagnosis result transmission unit 55 confirms from the previous usage status diagnosis result stored in the usage status diagnosis result storage unit 54 that the current time is a time when the PHS terminal 10 is not powered off. As shown in FIG. 2, the usage status diagnosis result stored in step S504 is transmitted to the PHS base station 20 including the corresponding PHS terminal 10 in the service area (step S505). Further, the current usage status diagnosis result stored in step S504 is one of the usage status information of the diagnosis in the next step S503. After sending the usage status diagnosis result, the process from the collection is repeated again while waiting for the setting result to be received (waiting for step S506).

  FIG. 4 is a flowchart showing a process flow of the PHS base station 20. The usage status diagnosis result transmitted to the corresponding PHS base station 20 in step S505 of FIG. 3 is received by the usage status diagnosis result communication unit 21 (step S201), and the received usage status diagnosis is performed as shown in FIG. The result is transmitted to the corresponding PHS terminal 10 by the usage status diagnosis result communication unit 21 (step S202). In addition, the sequence regarding the communication process of the utilization condition diagnosis result between the center 40, the PHS base station 20, and the PHS terminal 10 is shown in FIG.

  FIG. 5 is a flowchart showing a process flow of the PHS terminal 10. The usage status diagnosis result transmitted in step S202 (FIG. 4) is received by the usage status diagnosis result storage unit 11 (step S101) and stored in the usage status diagnosis result storage unit 11 (step S102). The usage status diagnosis result stored in step S102 is displayed on the usage status diagnosis result display unit 12 as shown in FIG. 13 for the time period during which the corresponding PHS terminal 10 performs power-off (step S103). Note that this display method may be any display display or voice guidance notification. The user determines whether or not the power can be cut off during the time period displayed in step S103 by using the screen as shown in FIG. 14 and inputs a key (step S104). When it is okay to turn off the power, the power supply control is performed based on the result of the use situation diagnosis. The result determined by the user in step S104 is transmitted as a setting result from the setting result transmitting unit 13 to the PHS base station 20 as shown in FIG. 2 (step S105). The setting result transmitted to the PHS base station 20 is received by the setting result communication unit 22 of the PHS base station 20 (step S203 in FIG. 4), and the received setting result is sent to the center 40 as shown in FIG. It is transmitted (step S204). The setting result storage unit 56 (FIG. 1) in the center 40 receives and stores the setting result transmitted from the PHS terminal 20 in step S204 of FIG. 4 (step S506). A sequence related to communication processing of setting results among the center 40, the PHS base station 20, and the PHS terminal 10 is shown in FIG.

  The utilization status diagnosis result reflecting unit 14 (FIG. 1) in the PHS terminal 10 turns off the power supply of the PHS terminal 10 when the power shutdown start time comes (step S106) based on the utilization status diagnosis result stored in step S102 in FIG. (Step S107), and when the power-off end time (power-on start time) is reached (step S108), the corresponding PHS terminal 10 is powered on (step S109). Whether or not a new usage status diagnosis result has been sent is determined by the usage status diagnosis result storage unit 11 (step S110). If no new usage status diagnosis result has been sent, power supply control is performed at an execution time based on the current diagnostic result. When it is sent, a new usage status diagnosis result is received as described above. Since the usage status diagnosis result transmission unit 55 sees the usage status diagnosis result and does not send the usage status diagnosis result during the power-off time, the PHS terminal 10 can receive the usage status diagnosis result. Also, if the usage status diagnosis result fails to be transmitted, it will be transmitted again after some time.

(About incoming call history processing)
Processing when a call is received when the PHS terminal 10 is powered off by the power control will be described with reference to FIGS. That is, FIG. 8 is a sequence diagram showing the flow of the entire system for notification of incoming call history when the mobile communication terminal is powered off, FIG. 9 is a flowchart showing the flow of processing in the center 40, and FIG. 10 is the flow of processing in the PHS base station 20. 11 is a flowchart showing the flow of processing in the PHS terminal 10, and FIG. 12 is a diagram showing a sequence related to communication processing between the center 40, the PHS base station 20, and the PHS terminal 10.

  As shown in FIG. 9, the incoming call history management unit 57 of the center 40 determines whether or not the PHS terminal 10 is powered off (step S511). The incoming call history management unit 57 indicates that the setting result stored in the setting result storage unit 56 indicates that the power supply control setting is ON, and the power of the usage status diagnosis result stored in the usage status diagnosis result storage unit 54 When the current time is in the interruption time zone, it is determined that the PHS terminal 10 is in the power interruption state. The incoming call history management unit 57 also collects incoming call history while the power is off (step S512). As shown in FIG. 11, when the power-off time ends and the PHS terminal 10 is turned on (step S111), the location registration unit 17 of the PHS terminal 10 performs location registration (step S112). As shown in FIG. 9, the location registration management unit 58 of the center 40 determines whether or not the PHS terminal 10 has been turned on at the power-off end time and has performed location registration (step S513), and the location registration has been performed. The incoming call history transmission unit 59 transmits the incoming call history collected by the incoming call history management unit 57 to the PHS base station 20 as shown in FIG. 8 (step S514).

  The incoming call history transmitted to the PHS base station 20 in step S514 is received by the incoming call history communication unit 23 (step S211) and transmitted toward the PHS terminal 10 as shown in FIG. 10 (step S212).

  As shown in FIG. 11, the incoming call history transmitted to the PHS terminal 10 in step S212 is received by the incoming call history storage unit 15 (step S113) and stored in the incoming call history storage unit 15 (step S114). The incoming call history stored in step S114 is displayed on the incoming call history display unit 16 (step S115). As described above, the display method may be display display or voice guidance notification.

(Description of communication processing unit)
The communication processing for sending the usage status diagnosis result from the center 40 to the PHS terminal 10 via the PHS base station 20 is performed by the Japan Radio Industry Association 2nd generation cordless telephone system RCR STD-28 and the Japan Telegraph and Telephone Technical Committee TTC Standard JT. -Q931-b PHS public base station-digital network interface Conforms to Layer 3 specifications. A call control message transmitted and received between the PHS terminal 10 and the PHS base station 20 (corresponding to the 2nd generation cordless telephone system RCR STD-28) is CC (Call Control) at the head of the message name. , Circuit switching mode connection message transmitted / received over the wire between the PHS base station 20 and the center 40 (Telephone Technical Committee TTC standard JT-Q931-b PHS public base station-digital network interface layer 3 specification (Conforming) is described by adding NW (Net Work) to the head of the message name. Messages related to RT (Radio Frequency Transmission Management) and MM (Mobility Management) are omitted.

  The communication for sending the usage status diagnosis result shown in FIG. 6 is realized when the PHS terminal 10 receives a call from the center 40. Therefore, in order to make a call from the center 40 to the PHS terminal 10, the center 40 transmits a call setting (addition of a destination subaddress) to the PHS base station 20. By adding a predetermined arrival subaddress to the call setting, the PHS terminal 10 can recognize that the communication is for receiving the usage status diagnosis result and can automatically respond. When receiving the call setting, the PHS terminal 10 returns a call setting reception. The PHS terminal 10 is called and the PHS terminal 10 automatically responds. When the response is received, the PHS terminal 10 receives the usage status diagnosis result. When the reception is completed, the PHS terminal 10 disconnects and ends the communication.

  The communication for sending the setting result shown in FIG. 7 is realized by transmitting from the PHS terminal 10 to the center 40. The PHS terminal 10 transmits call setting to the PHS base station 20 and receives call setting reception. FIG. 7 shows a call, but it may be omitted. The PHS terminal 10 responds and transmits the setting result. When the center 40 has received the setting result, it is disconnected and communication is terminated.

  The communication for sending the incoming call history shown in FIG. 12 is the same sequence as the communication method for sending the usage status diagnosis result. After the PHS terminal 10 performs the location registration, the communication is performed in the same procedure as the usage status diagnostic result communication method. To do.

1 is a block diagram showing a schematic configuration of a PHS system according to an embodiment of the present invention. FIG. 3 is an information processing sequence diagram showing a power supply control operation in the PHS system shown in FIG. 1. 3 is an information processing flowchart showing a power supply control operation in the center of the PHS system shown in FIG. 3 is an information processing flowchart showing a power supply control operation in the PHS base station of the PHS system shown in FIG. The information processing flowchart which shows the power supply control operation in the PHS terminal of the PHS system shown in FIG. The sequence diagram showing the process which communicates the terminal utilization condition diagnostic result in the PHS system shown in FIG. The sequence diagram showing the process which communicates the setting result in the PHS system shown in FIG. The sequence diagram showing the process regarding the incoming call history collection and incoming call history display in the PHS system shown in FIG. The flowchart which shows the flow of the process which a center performs by the process regarding the incoming call history collection in the PHS system shown in FIG. The flowchart which shows the flow of the process which a PHS base station performs by the process regarding the incoming call history collection in the PHS system shown in FIG. The flowchart which shows the flow of the process which a PHS terminal performs by the process regarding the incoming call history collection in the PHS system shown in FIG. The sequence diagram showing the process which communicates the incoming call history in the PHS terminal power supply interruption in the PHS system shown in FIG. The figure which shows the screen used for the PHS system shown in FIG. The figure which shows the screen used for the PHS system shown in FIG. The figure which shows the terminal utilization condition information collected in the PHS system shown in FIG. 3 is an information processing flowchart showing a power supply control operation in the center of the PHS system shown in FIG.

Explanation of symbols

10: PHS terminal 11: Usage status diagnosis result storage unit 12: Usage status diagnosis result display unit 13: Setting result transmission unit 14: Usage status diagnosis result reflection unit 15: Incoming call history storage unit 16: Incoming call history Display unit 17: Location registration unit 20: PHS base station 21: Usage status diagnosis result communication unit 22: Setting result communication unit 23: Incoming call history communication unit 30: Public network 40: Center 50: User Usage status management unit 51: Usage status information collection unit 52: Usage status diagnosis trigger determination unit 53: Usage status diagnosis unit 54: Usage status diagnosis result storage unit 55: Usage status diagnosis result transmission unit 56: Setting Result storage unit, 57: incoming call history management unit, 58: location registration management unit, 59: incoming call history transmission unit.

Claims (6)

  In a mobile communication system composed of a mobile communication terminal, a base station, and a management center, means provided in the management center for collecting usage status information including time zone information in which the mobile communication terminal is used, A usage status diagnosing means for calculating a time zone for powering off the mobile communication terminal using the usage status information obtained by the means, and a power interruption provided in the mobile communication terminal and obtained by the usage status diagnosing means. Means for controlling the power supply of the mobile communication terminal in a time zone for performing the incoming call, and creating an incoming history when the mobile communication terminal is turned off, provided in the management center, An incoming call history management means for sending the incoming call history to the mobile communication terminal when the mobile communication terminal finishes power-off. . In a mobile communication system comprising a mobile communication terminal, a base station including the mobile communication terminal in a service area, the mobile communication terminal and a management center that manages the base station,
The center grasps and saves the communication usage status of the mobile communication terminal, and stores the diagnosis result of diagnosing the usage status information saved by this means and using the time period when the mobile communication terminal is not used as the power-off time. Means for transmitting the diagnostic result stored by the means to the base station, means for collecting and storing incoming histories received at the mobile communication terminal while the mobile communication terminal is powered off, and the means Means for transmitting the incoming call history stored by the mobile station to the base station when the mobile communication terminal finishes powering off,
The base station comprises means for receiving the diagnostic result information and transmitting it to the mobile communication terminal, and means for receiving the incoming call history information and transmitting it to the mobile communication terminal,
The mobile communication terminal receives and stores the diagnostic result information transmitted from the base station, diagnostic result display means for displaying the diagnostic result information received by the means, and the diagnostic result information Diagnostic result reflecting means for performing power-off control on the mobile communication terminal based on the received call history storage means for receiving and storing the incoming call history information transmitted from the base station, and the incoming call history stored by the means A power control system for a mobile communication terminal, comprising: an incoming call history display means for displaying information; and a means for performing location registration when power-off control is terminated and power is turned on again.   Means for receiving a diagnostic result transmitted from the base station, means for storing the diagnostic result received by this means in a memory including a USIM card, and means for displaying the contents of diagnostic result information stored by this means; , Means for performing power-off control of the mobile communication terminal based on the stored diagnosis result, means for receiving and storing the incoming call history transmitted from the base station, and displaying the contents of the incoming call history information stored by the means And a means for performing location registration when power is turned off and power is turned on again.   Means for storing usage status information of mobile communication terminal users, and time zones for diagnosing usage status information for each fixed period stored by the means, grasping the usage time zones for each mobile communication terminal user, and turning off the power A means for storing the result of diagnosis by this means and transmitting the result to the base station, a means for collecting and storing an incoming call history when the mobile communication terminal receives an incoming call while the power is off, and the mobile A mobile communication terminal management center, comprising: means for transmitting the incoming call history to a base station including the mobile communication terminal in an area after the communication terminal finishes power-off and performs location registration.   The usage status information of each user is stored in the center that manages the mobile communication terminal and the base station, the usage status information within a certain period is diagnosed to determine the usage time zone, and based on this, the time zone for power control is determined. A power control execution time calculation method for a mobile communication terminal. In a mobile communication system composed of a mobile communication terminal, a base station and a management center,
The center grasps the communication usage status of the mobile communication terminal and saves it, diagnoses the saved usage status information, sends the diagnosis result to the base station, and collects the incoming call history during power interruption And storing the incoming call history when the mobile communication terminal finishes powering off, and transmitting the mobile communication terminal to a base station included in the area,
The base station comprises the steps of receiving the diagnostic result information and transmitting it to the mobile communication terminal, and receiving the incoming call history information and transmitting it to the mobile communication terminal,
The mobile communication terminal receives and stores the diagnostic result information transmitted from the base station, displays the contents of the diagnostic result information, and is not used by the mobile communication terminal based on the diagnostic result information A step of turning off the power of the mobile communication terminal in a time zone; a step of receiving and storing the incoming call history information transmitted from the base station; a step of displaying the incoming call history information; A mobile communication terminal power control method comprising: a step of performing location registration when re-entering.

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